Improvement in steam-boilee furnaces



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Leners Patent-N0. 76,585, dated Apta 14, 186s.

IMPROVEMENT IN STEAM-BOILER FURACES.

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'I'O ALL WHOM IT MAY CONCERN:

Beit known that I, SAMUEL P. ABARTLEY, of Columbus, Ohio, have invented a new land useful Improvement on the Construction of a Steam-Boiler; and I do hereby declarethat the .following is a full, clear, and exact description of the construction and operation of the saule, reference being had to the annexed drawings, making a. part of this specilication, inwhich- I l u Figure I is a side v iew.

Figure II is a top view without the boiler.

Figure III is allongitudinal section through the centr`e.

` Figure IV is a crosssection, and

Figure V is a frontview of the boiler.

The natureof-my improvement consists in a funnel, -to'shape'theiiames to the boiler; also a chamber, so constructed as to guide the flame to the rear, and into the lues ofthe boiler, and furnished with air, to promote the combustion of the smoke and gases, which would otherwise pass out without burning.4 .l

To enable others skilled in the art to make and use my inv'ention, I will proceed tol describe its construction and operation.` V i p The brick-workQA, Fig. I, Ion which rests the boiler, is constructed as in ordinary cases, except that I introduce the cold-air pipe E, which' admits the cold air into the chamber O, Fig. III. The funnel-shaped chamber or passage D is so constructed as to force the flames directly against and around the boiler, while the large chamber O is cnrvcd at the rear end, as' shown in Fig. III, which curve gives motion to and directs the flame into the ilues of the-boiler. The cold-air pipe E passes square through the walls of the furnace, and 4then takesA the same circle withthe chamber D, with a slot running the whole length of the pipe, which is to be placed immediately inrear of and Hush with the funnel-shaped chamber D.' It is confidently believed and 'claimed .that this arrangement will save'fty per cent. of the fuel lgenerally used in the ordinary furnaces for heating boilers.

The cold-air pipe E may be introduced under the flues, or at other points, without departing from the spirit of my invention.A

What I cla-im as my invention, and desire vto secure by Letters- Pat-ent, is-

The funnel-shapedchamber or passage D, in combination with circular or curve in rear of chamberkO, and .the cold-air pipe E, constructed and operating substantially as and for the purpose described. v u

SAMUEL P. BARTLEY.

Witnesses:

THOMAS E. TAYLOR, .v SAML GULIcK. 

